August 2022
Beginner to intermediate
436 pages
9h 43m
Korean
Content preview from SQL로 시작하는 데이터 분석
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259
5
장
텍스트 분석
,split_part(
split_part(sighting_report,’Duration’,1)
,’Shape: ‘,2)
as
shape
,split_part(sighting_report,’Duration:’,2)
as
duration
FROM
ufo
) a
ORDER BY
1
;
occurred entered_as reported posted location shape duration
-------- ---------- -------- ------- ---------- -------- ----------
... ... ... ... ... ... ...
2018-... 7/31/19... 2018-... 2018... Greenwi... Light + 1 hour
2018-... 07/31/1... 2018-... 2018... Bakersf... Triangle 15 minutes
2018-... 08/01/1... 2018-... 2018... Wenatch... Light 1 minute
... ... ... ... ... ... ...
이
SQL
코드는 다른 쿼리에서 재활용할 수 있으며, 기존의 원본 데이터셋을 새 테이블로 옮기
고 해당 테이블에서 데이터를 정제하는 데 사용할 수도 있습니다. 혹은 재활용을 위해 ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.